CN213981435U - Automatic reversing cylinder - Google Patents
Automatic reversing cylinder Download PDFInfo
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- CN213981435U CN213981435U CN202022695131.XU CN202022695131U CN213981435U CN 213981435 U CN213981435 U CN 213981435U CN 202022695131 U CN202022695131 U CN 202022695131U CN 213981435 U CN213981435 U CN 213981435U
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Abstract
The utility model relates to an automatic reversing cylinder, which comprises a shell, a piston, a sliding cover and a connecting rod; the piston can move in the piston cavity along the axial direction, and when the piston is at a first position closest to the reversing part, the sliding cavity is communicated with the air inlet pipe and the first air outlet pipe; when the piston is at a second position closest to the sealing part, the sliding cavity is communicated with the air inlet pipe and the second air outlet pipe. Implement the embodiment of the utility model provides a, following beneficial effect has: the automatic reversing cylinder drives the sliding cover to reciprocate along with the piston when reciprocating, so that the air inlet pipe is communicated with the first air outlet pipe and the second air outlet pipe alternately, the flowing direction of air is changed alternately, air is supplied to the first half cavity and the second half cavity alternately, and the piston is pushed to reciprocate in the piston cavity.
Description
Technical Field
The utility model relates to a cylinder technical field especially relates to automatic reversing cylinder.
Background
The cylinder is a common component in the field of machinery, and is widely applied to various mechanical devices to convert the pressure energy of compressed gas into the kinetic energy of mechanical motion, so as to provide the power of linear displacement.
In mechanical design, a power source for reciprocating motion is often required to be provided, and an automatic reversing device is generally added on a cylinder to realize the purpose. The existing automatic reversing device has a complex structure, so that the size of an automatic reversing cylinder is large, and the application scene is limited.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide an automatic reversing cylinder to solve the technical problems of complex structure and large volume of the automatic reversing cylinder in the prior art.
The utility model provides an automatic reversing cylinder, this automatic reversing cylinder includes: the piston is connected with the sliding cover; the shell comprises a reversing part, a piston cylinder and a sealing part, wherein two ends of the piston cylinder are respectively connected with the reversing part and the sealing part in a sealing manner and form a piston cavity in a surrounding manner; the piston is arranged in the piston cavity, the side edge of the piston is in sealed sliding connection with the inner wall of the piston cylinder, and the piston cavity is divided into a first half cavity close to the reversing part and a second half cavity close to the sealing part; a reversing cavity is formed in the reversing part, an air inlet pipe, a first air outlet pipe and a second air outlet pipe are arranged in the shell, the air inlet pipe is communicated with the reversing cavity and the outside of the shell, the first air outlet pipe is communicated with the reversing cavity and the first half cavity, and the second air outlet pipe is communicated with the reversing cavity and the second half cavity; the sliding cover is arranged in the reversing cavity and is in sliding sealing connection with the reversing part, and the sliding cover and the inner wall of the reversing cavity are enclosed to form a sliding cavity; one end of the connecting rod is connected with the sliding cover, and the other end of the connecting rod sequentially penetrates through the reversing part, the piston and the sealing part and extends out of the piston cavity; the piston can move in the piston cavity along the axial direction, and when the piston is at a first position closest to the reversing part, the sliding cavity is communicated with the air inlet pipe and the first air outlet pipe; when the piston is at a second position closest to the sealing part, the sliding cavity is communicated with the air inlet pipe and the second air outlet pipe.
Furthermore, the automatic reversing cylinder further comprises two stabilizing devices, and the stabilizing devices are symmetrically arranged on two sides of the sliding cover and are connected with the inner wall of the reversing part.
Further, stabilising arrangement includes sliding seat, slider and transfer line, and the sliding seat sets up in one side of sliding cover, with switching-over portion inner wall fixed connection, opens towards sliding cover and is equipped with the spout, places the spout in and can slide along the spout in the slider in, and the both ends of transfer line rotate with slider and sliding cover respectively and are connected.
Further, the first air outlet pipe extends from the reversing part to the piston cylinder.
Further, a second air outlet pipe extends from the reversing part to the piston cylinder.
Furthermore, at least one circle of sealing ring groove is formed in the side face of the piston, and the automatic reversing cylinder further comprises a sealing ring sleeved on the sealing ring groove.
Compared with the prior art, the automatic reversing cylinder has the advantages that the sliding cover is driven to reciprocate along with the piston when the piston reciprocates, so that the air inlet pipe is communicated with the first air outlet pipe and the second air outlet pipe alternately, the flowing direction of air is changed alternately, air is supplied to the first half cavity and the second half cavity alternately, and the piston is pushed to reciprocate in the piston cavity.
Drawings
Fig. 1 is a schematic structural view of the automatic reversing cylinder according to the present invention when the piston is at the first position;
fig. 2 is a schematic structural diagram of the automatic reversing cylinder according to the present invention when the piston is at the second position;
fig. 3 is a schematic diagram of the piston of the automatic reversing cylinder provided by the present invention at the first position;
fig. 4 is a schematic diagram of the piston of the automatic reversing cylinder according to the present invention at the second position.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Referring to fig. 1 to 4, the automatic reversing cylinder includes a housing 1, a piston 2, a seal ring 3, a connecting rod 4, a sliding cover 5, and a stabilizer 6.
The housing 1 includes a direction changing portion 11, a piston cylinder 12, and a seal portion 13. The piston cylinder 12 is a cylindrical hollow structure, two ends of the piston cylinder 12 are respectively connected with the reversing part 11 and the sealing part 13 in a sealing manner, and a cylindrical sealing cavity is formed by the three parts in a surrounding manner.
The piston 2 is arranged in the sealing cavity, the side edge of the piston 2 is connected with the inner wall of the piston cylinder 12 in a sealing and sliding mode, and the piston cavity is divided into a first half cavity 121 close to the reversing part 11 and a second half cavity 122 close to the sealing part 13. In order for the piston 2 to be able to sufficiently isolate the first half-chamber 121 and the second half-chamber 122, air leakage from the piston 2 is avoided. Preferably, one or more sealing ring grooves are formed in the side surface of the piston 2, and a sealing ring 3 is sleeved in each sealing ring groove to seal a gap between the piston 2 and the inner wall of the piston cylinder 12.
A reversing cavity is formed in the reversing part 11, and an air inlet pipe 14, a first air outlet pipe 15 and a second air outlet pipe 16 are arranged in the shell 1. The air inlet pipe 14 is communicated with the reversing cavity and the outside of the shell and is used for connecting external air supply equipment, so that continuous air flow is provided for the automatic reversing air cylinder. The first outlet pipe 15 extends from the direction change portion 11 to the piston cylinder 12, and communicates the direction change chamber with the first half chamber 121. A second outlet tube 16 extends from the turnaround portion 11 to the piston cylinder 12, communicating the turnaround chamber with the second half-chamber 122.
The middle part of the connecting rod 4 is fixedly connected with the piston 2, and one end of the connecting rod passes through the sealing part 13 and extends out of the piston cavity to be used as a power output end to output power outwards. The other end of the piston rod passes through the reversing part 11 and extends into the reversing cavity to be fixedly connected with the sliding cover 5, and the sliding cover 5 is driven to reciprocate along with the piston 2.
The sliding cover 5 is arranged in the reversing cavity and is connected with the inner wall of the reversing part 11 in a sliding and sealing mode, and the sliding cover 5 can slide on the inner wall of the reversing part 11 under the driving of the connecting rod 4. The sliding cover 5 and the inner wall of the reversing part 11 surround to form a sliding cavity 51. The sliding path of the sliding cover 5 passes through the inlet pipe 14, the first outlet pipe 15 and the second outlet pipe 16, thereby realizing the communication between the inlet pipe 14 and the first outlet pipe 15 or the second outlet pipe 16.
As shown in fig. 3, the piston 2 reciprocates in the axial direction in the piston chamber, and when the piston 2 moves toward the direction changing portion 11, the sliding cover 5 moves together with the piston, and after moving a distance, the air inlet pipe 14 and the first air outlet pipe 15 are simultaneously communicated with the sliding chamber 51. The external air supply device supplies air into the first half cavity 121 through the air inlet pipe 14, the sliding cavity 51 and the first air outlet pipe 15, so that the air pressure in the first half cavity 121 is greater than the air pressure in the second half cavity 122. The pressure difference between both sides of the piston 2 causes the piston 2 to generate an acceleration in the direction of the seal portion 13, and the piston 2 performs a deceleration motion. When the piston 2 moves to the first position closest to the commutation section 11, the speed of the piston 2 drops to 0 and then starts moving in reverse towards the sealing section 13. The first automatic reversing of the automatic reversing cylinder is realized.
As shown in fig. 4, when the piston 2 moves toward the sealing portion 13, the sliding cover 5 moves along with the piston, and moves a distance such that the air inlet pipe 14 and the second air outlet pipe 16 are simultaneously communicated with the sliding chamber 51. The external air supply device supplies air into the second half cavity 122 through the air inlet pipe 14, the sliding cavity 51 and the second air outlet pipe 16, so that the air pressure in the second half cavity 122 is greater than the air pressure in the first half cavity 121. The pressure difference between both sides of the piston 2 causes the piston 2 to generate acceleration in the direction of the reversing section 11, and the piston 2 performs deceleration movement. When the piston 2 moves to the second position closest to the sealing portion 13, the speed of the piston 2 drops to 0 and then starts moving in the reverse direction toward the reversing portion 11. The second automatic reversing of the automatic reversing cylinder is realized.
The two motion processes are alternately carried out, so that the automatic reversing of the cylinder is realized, and the reciprocating power is uninterruptedly output.
In order to keep the direction of movement of the sliding cover 5 consistent with the direction of movement of the piston 2, the angular deviation is reduced to within an allowable range. Preferably, two stabilizing devices 6 are arranged on two sides of the sliding cover 5, each stabilizing device 6 comprises a sliding seat 61, a sliding block 62 and a transmission rod 63, the sliding seat 61 is arranged on one side of the sliding cover 5 and fixedly connected with the inner wall of the reversing part 11, a sliding groove is formed towards the sliding cover 5, the sliding block 62 is arranged in the sliding groove and can slide along the sliding groove, and two ends of the transmission rod 63 are respectively rotatably connected with the sliding block 62 and the sliding cover 5.
When the sliding cover 5 is driven by the connecting rod 4 to reciprocate, the sliding block 62 is also driven by the transmission rod 63 to reciprocate in the sliding chute. By symmetrically arranging the two stabilizing devices 6, the transverse offset of the sliding cover 5 during the linear reciprocating motion is greatly reduced, and the motion identity with the piston 2 is improved.
Implement the embodiment of the utility model provides a, following beneficial effect has: the automatic reversing cylinder drives the sliding cover to reciprocate along with the piston when reciprocating, so that the air inlet pipe is communicated with the first air outlet pipe and the second air outlet pipe alternately, the flowing direction of air is changed alternately, air is supplied to the first half cavity and the second half cavity alternately, and the piston is pushed to reciprocate in the piston cavity.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (6)
1. An automatic reversing cylinder, characterized in that it includes: the piston is connected with the sliding cover;
the shell comprises a reversing part, a piston cylinder and a sealing part, wherein two ends of the piston cylinder are respectively connected with the reversing part and the sealing part in a sealing manner to form a piston cavity in a surrounding manner;
the piston is arranged in the piston cavity, the side edge of the piston is in sealed sliding connection with the inner wall of the piston cylinder, and the piston cavity is divided into a first half cavity close to the reversing part and a second half cavity close to the sealing part;
a reversing cavity is formed in the reversing part, an air inlet pipe, a first air outlet pipe and a second air outlet pipe are arranged in the shell, the air inlet pipe is communicated with the reversing cavity and the outside of the shell, the first air outlet pipe is communicated with the reversing cavity and the first half cavity, and the second air outlet pipe is communicated with the reversing cavity and the second half cavity;
the sliding cover is arranged in the reversing cavity and is in sliding sealing connection with the reversing part, and the sliding cover and the inner wall of the reversing cavity are enclosed to form a sliding cavity;
one end of the connecting rod is connected with the sliding cover, and the other end of the connecting rod sequentially penetrates through the reversing part, the piston and the sealing part and extends out of the piston cavity;
the piston can move in the piston cavity along the axial direction, and when the piston is at a first position closest to the reversing part, the sliding cavity is communicated with the air inlet pipe and the first air outlet pipe; when the piston is at a second position closest to the sealing part, the sliding cavity is communicated with the air inlet pipe and the second air outlet pipe.
2. The automatic reversing cylinder according to claim 1, further comprising two stabilizing devices symmetrically arranged on two sides of the sliding cover and connecting the sliding cover and the inner wall of the reversing part.
3. The automatic reversing cylinder according to claim 2, wherein the stabilizing device comprises a sliding seat, a sliding block and a transmission rod, the sliding seat is arranged on one side of the sliding cover and fixedly connected with the inner wall of the reversing part, a sliding groove is formed towards the sliding cover, the sliding block is arranged in the sliding groove and can slide along the sliding groove, and two ends of the transmission rod are respectively rotatably connected with the sliding block and the sliding cover.
4. The auto-reversing cylinder according to claim 3, wherein the first outlet tube extends from the reversing portion to the piston cylinder.
5. The auto-reversing cylinder according to claim 3, wherein the second outlet tube extends from the reversing portion to the piston cylinder.
6. The automatic reversing cylinder according to claim 3, wherein the piston is provided with at least one circle of sealing ring groove on the side surface, and the automatic reversing cylinder further comprises a sealing ring sleeved on the sealing ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695131.XU CN213981435U (en) | 2020-11-19 | 2020-11-19 | Automatic reversing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695131.XU CN213981435U (en) | 2020-11-19 | 2020-11-19 | Automatic reversing cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213981435U true CN213981435U (en) | 2021-08-17 |
Family
ID=77264338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022695131.XU Active CN213981435U (en) | 2020-11-19 | 2020-11-19 | Automatic reversing cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213981435U (en) |
-
2020
- 2020-11-19 CN CN202022695131.XU patent/CN213981435U/en active Active
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